Improvement in base-burning stoves



s, H. LA'RUE.

Base Burning Stove.

Patented April H, 1871.

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sILAs HOFFMAN LA, RUE, or ALLENTOWN, PENNSYLVANIA, ASSIGNOR T0 HIMSELFANDIW. J. HOXWORTH, OF'SAME PLACE.

Letters Patent No. 113,535, dated April 11, 1871; antedated April 1, 1871.

IMPROVEMENT IN BASE-BURNING STOVES.

the Schedule referred-to in' those Letters Patent and making part of thesame.

-To all whom it may concern Be it known that I, SrLAs HOFFMAN LARUE,z-'0f Allentown, in the county of Lehigh and State of Pennsylvania,have invented, certain ,novel Improvements in Stoves; and I do herebydeclare that the following .is afnll; clear, and exact descriptionthereof, reference being bad tojthe accompanying drawing making part ofthis specification, in which -Figure 1 is a diametrical section througha stove having my improvements applied to it.

Figure 2 is a section taken horizontally through the fire-chamber,looking upward. v Figure 3 is a section taken horizontally through theairchamber near the top of the stove.

Similarlettersof reference indicate corresponding .parts in the severalfigures; ;--';This inventionmelates to certain novel improvements ontheheating-stove for which Letters Patent,

were granted' to me on the 26th day of 'July, A. D.

The improvement which I have made consists- First, in a corrugated orfluted supply-reservoir, which is provided with an air-inlet passagebetween its upperaud lower-extremities.

Second, in the arrangement of a cold-air chamber betweena reservoirandthe body of the stove, as will be hereinafter explained;

.The following is a description of my improvements, and the manner. ofapplying them to a stove.

In the accompanying drawing-1 A represents the outer casing of thestove, within which is suspended the fuel-reservoir B.

G is the grate; E, the. ash chamber; and d,' the outlet-flue.

G,-which Atlthc top of the case A is a water-tank,

surrounds the upper end e of the fuel-magazine B, and which receivesinto it the annular flange f of a cover, H. The cover H is thuswater-packed, and prevents the entrance of air into the upper end of thereservoir B.

Below the water-tank G is anannu'larchamber, J,

tank G and'the lower heated portion of the stove, will prevent 'a-rapidevaporation of the water in said tank by cutting otf the intense heat,and thus obviate the necessity of fi equently replenishingthe tank withwater.

The fuel-reservoir B-issus'pended above the grate I 0 so as to leave afire-chamber, D,'betweeu this grate and the lower end of the-reservoir;and at a suitable point between the ends of the reservoir" an air-inletpassage, g, is inade,"which communicates with an airinlet passage, 9, bymeans ofan air-conduit, K. Thus, it will be seen that'the fuel in thereservoir B, which is below the inlet-passage y, will be suppliedwith-air, and will consequently burn.

The reservoir B is corrugated or fluted, as shown in figs. 1 and 2, forthe purpose of preventing the coal from becoming so packed against itssides as to prevent a free circulation of air to the entire body of coalbetween the air-inlet passage g, which isimportant in order to effectthorough combustion of the fuel.

Thesfeatures herein described of introducing air' into a'fuel-reservoirabove its lower. end, and also of employing a water-packed joint for thecover at the upper end of the magazine, are more fully explained in myLetters Patent of July '26, 1870, above referred to, and are not claimedhere.

What I do claim, and desire to -secure by Letter Patent, is'--- .1. Afuel-reservoir, B, which is corrugated or inter-i nail y ribbed, incombination with the air-inlet passage g betweenthe extremities et athisreservoir, substan-' tially as described.

2. The air circulating chamber J arranged directly beneath thewater-tank G, and its water-packed cover H, substantially as described.I

SILAS HOFFMAN LA RUE. Witnesses:

A. K. WITTMAN, T. B. LEISENRING.

